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Contents

README

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SN74HCS126PWR

Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TSSOP-14

SN74HCS126PWR from Texas Instruments, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1OE input Schmitt-trigger input for Channel 1 output enable (active high); forces output to high-impedance when low.
2 1A input Schmitt-trigger input for Channel 1 data input (0 to VCC); provides hysteresis for slow or noisy signals.
3 1Y tri_state 3-state output for Channel 1 (Y=A when enabled); can sink/source 7.8mA at 6V.
4 2OE input Schmitt-trigger input for Channel 2 output enable (active high); forces output to high-impedance when low.
5 2A input Schmitt-trigger input for Channel 2 data input (0 to VCC); provides hysteresis for slow or noisy signals.
6 2Y tri_state 3-state output for Channel 2 (Y=A when enabled); can sink/source 7.8mA at 6V.
7 GND power_in Ground; negative supply reference voltage (0V).
8 3Y tri_state 3-state output for Channel 3 (Y=A when enabled); can sink/source 7.8mA at 6V.
9 3A input Schmitt-trigger input for Channel 3 data input (0 to VCC); provides hysteresis for slow or noisy signals.
10 3OE input Schmitt-trigger input for Channel 3 output enable (active high); forces output to high-impedance when low.
11 4Y tri_state 3-state output for Channel 4 (Y=A when enabled); can sink/source 7.8mA at 6V.
12 4A input Schmitt-trigger input for Channel 4 data input (0 to VCC); provides hysteresis for slow or noisy signals.
13 4OE input Schmitt-trigger input for Channel 4 output enable (active high); forces output to high-impedance when low.
14 VCC power_in Positive supply voltage; operating range 2V to 6V per Recommended Operating Conditions.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-14
Category Logic
Pins 14

CAD (KiCad official)

  • Symbol: SN74HCS126PWR
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: sn74hcs126pwr-etched.step / sn74hcs126pwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hcs126pwr.step / sn74hcs126pwr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 00279fc86b66b4c7, retrieved 2026-09-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF